Real Estate and Other Activities - Schedule of Concentrations of Credit Risk (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Business Acquisition [Line Items]
Total Assets	$ 16,194,743		$ 16,194,743		$ 18,304,844
Total Revenues	$ 266,560	$ 337,395	$ 537,876	$ 687,606
Minimum [Member] | Customer Concentration Risk [Member]
Business Acquisition [Line Items]
Maximum percentage of entity's assets invested on single property	2.00%		2.00%
Total Gross Assets [Member] | Operator Concentration Risk [Member]
Business Acquisition [Line Items]
Total Assets	$ 16,194,743		$ 16,194,743		$ 18,304,844
Percentage of concentration risk			100.00%		100.00%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Other Assets [Member]
Business Acquisition [Line Items]
Percentage of concentration risk			12.70%		11.00%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Steward [Member]
Business Acquisition [Line Items]
Total Assets	2,826,852		$ 2,826,852		$ 3,518,537
Percentage of concentration risk			17.50%		19.20%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Circle [Member]
Business Acquisition [Line Items]
Total Assets	2,077,416		$ 2,077,416		$ 2,119,392
Percentage of concentration risk			12.80%		11.60%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Priory [Member]
Business Acquisition [Line Items]
Total Assets	1,260,359		$ 1,260,359		$ 1,391,005
Percentage of concentration risk			7.80%		7.60%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Prospect [Member]
Business Acquisition [Line Items]
Total Assets	1,040,792		$ 1,040,792		$ 1,092,974
Percentage of concentration risk			6.40%		6.00%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Lifepoint Behavioral [Member]
Business Acquisition [Line Items]
Total Assets	814,133		$ 814,133		$ 813,527
Percentage of concentration risk			5.00%		4.40%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Other Operators [Member]
Business Acquisition [Line Items]
Total Assets	6,112,813		$ 6,112,813		$ 7,352,012
Percentage of concentration risk			37.80%		40.20%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Other Assets by Operator [Member]
Business Acquisition [Line Items]
Total Assets	2,062,378		$ 2,062,378		$ 2,017,397
Total Gross Assets [Member] | Geographic Concentration [Member]
Business Acquisition [Line Items]
Total Assets	16,194,743		$ 16,194,743		$ 18,304,844
Percentage of concentration risk			100.00%		100.00%
Total Gross Assets [Member] | Geographic Concentration [Member] | Texas [Member]
Business Acquisition [Line Items]
Total Assets	1,472,182		$ 1,472,182		$ 1,891,482
Percentage of concentration risk			9.10%		10.30%
Total Gross Assets [Member] | Geographic Concentration [Member] | California [Member]
Business Acquisition [Line Items]
Total Assets	1,062,797		$ 1,062,797		$ 1,252,674
Percentage of concentration risk			6.60%		6.80%
Total Gross Assets [Member] | Geographic Concentration [Member] | Florida [Member]
Business Acquisition [Line Items]
Total Assets	1,296,622		$ 1,296,622		$ 1,348,210
Percentage of concentration risk			8.00%		7.40%
Total Gross Assets [Member] | Geographic Concentration [Member] | Arizona [Member]
Business Acquisition [Line Items]
Total Assets	515,086		$ 515,086		$ 547,789
Percentage of concentration risk			3.20%		3.00%
Total Gross Assets [Member] | Geographic Concentration [Member] | Pennsylvania [Member]
Business Acquisition [Line Items]
Total Assets	464,689		$ 464,689		$ 470,562
Percentage of concentration risk			2.80%		2.60%
Total Gross Assets [Member] | Geographic Concentration [Member] | All Other States [Member]
Business Acquisition [Line Items]
Total Assets	3,090,580		$ 3,090,580		$ 4,264,392
Percentage of concentration risk			19.10%		23.30%
Total Gross Assets [Member] | Geographic Concentration [Member] | Total U.S. [Member]
Business Acquisition [Line Items]
Total Assets	9,154,373		$ 9,154,373		$ 11,172,279
Percentage of concentration risk			56.50%		61.00%
Total Gross Assets [Member] | Geographic Concentration [Member] | United Kingdom [Member]
Business Acquisition [Line Items]
Total Assets	4,075,748		$ 4,075,748		$ 4,261,944
Percentage of concentration risk			25.20%		23.30%
Total Gross Assets [Member] | Geographic Concentration [Member] | Switzerland [Member]
Business Acquisition [Line Items]
Total Assets	687,500		$ 687,500		$ 735,891
Percentage of concentration risk			4.20%		4.00%
Total Gross Assets [Member] | Geographic Concentration [Member] | Germany [Member]
Business Acquisition [Line Items]
Total Assets	713,744		$ 713,744		$ 734,630
Percentage of concentration risk			4.40%		4.00%
Total Gross Assets [Member] | Geographic Concentration [Member] | Spain [Member]
Business Acquisition [Line Items]
Total Assets	252,389		$ 252,389		$ 252,529
Percentage of concentration risk			1.60%		1.40%
Total Gross Assets [Member] | Geographic Concentration [Member] | All Other Countries [Member]
Business Acquisition [Line Items]
Total Assets	501,028		$ 501,028		$ 527,344
Percentage of concentration risk			3.10%		2.90%
Total Gross Assets [Member] | Geographic Concentration [Member] | Other Domestic Assets [Member]
Business Acquisition [Line Items]
Total Assets	1,252,417		$ 1,252,417		$ 1,397,170
Percentage of concentration risk			7.70%		7.60%
Total Gross Assets [Member] | Geographic Concentration [Member] | Other International Assets [Member]
Business Acquisition [Line Items]
Total Assets	809,961		$ 809,961		$ 620,227
Percentage of concentration risk			5.00%		3.40%
Total Gross Assets [Member] | Geographic Concentration [Member] | Total International [Member]
Business Acquisition [Line Items]
Total Assets	7,040,370		$ 7,040,370		$ 7,132,565
Percentage of concentration risk			43.50%		39.00%
Total Gross Assets [Member] | Customer Concentration Risk [Member]
Business Acquisition [Line Items]
Total Assets	16,194,743		$ 16,194,743		$ 18,304,844
Percentage of concentration risk			100.00%		100.00%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | General Acute Care Hospitals [Member]
Business Acquisition [Line Items]
Total Assets	9,783,458		$ 9,783,458		$ 11,764,151
Percentage of concentration risk			60.40%		64.30%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Behavioral Health Facilities [Member]
Business Acquisition [Line Items]
Total Assets	2,433,787		$ 2,433,787		$ 2,576,983
Percentage of concentration risk			15.00%		14.10%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Post Acute Care Facilities [Member]
Business Acquisition [Line Items]
Total Assets	1,689,844		$ 1,689,844		$ 1,716,248
Percentage of concentration risk			10.50%		9.40%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Freestanding ER/Urgent Care Facilities [Member]
Business Acquisition [Line Items]
Total Assets	225,276		$ 225,276		$ 230,065
Percentage of concentration risk			1.40%		1.20%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Other Assets By Facility [Member]
Business Acquisition [Line Items]
Total Assets	$ 2,062,378		$ 2,062,378		$ 2,017,397
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Other Assets [Member]
Business Acquisition [Line Items]
Percentage of concentration risk			12.70%		11.00%
Revenue [Member] | Customer Concentration Risk [Member] | Circle [Member]
Business Acquisition [Line Items]
Percentage of concentration risk	10.00%		10.00%
Revenue [Member] | Customer Concentration Risk [Member] | Prospect and Circle [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		10.00%
Revenue [Member] | Customer Concentration Risk [Member] | Prospect Circle and Steward [Member]
Business Acquisition [Line Items]
Percentage of concentration risk				10.00%